Thanks Bhagyashri ji and Dinesh ji.
I agree with you Dinesh ji, our plants look different from each other. Thanks for bringing this discussion again, and sorry for the confusion. On closer look, your plant has flowers also on "leafy, racemelike, axillary shoots" (http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200013758
), which I mistook for a branched inflorescence. So it is perhaps Sida cordata as earlier identified by you. My plant seems to be a form of S. mysorensis with solitary flowers. I have seen also the other form with 'branched' inflorescence, but both the plants have glandular hairs. Please do the needful, and let us hear from others, too.
Vijayasankar RamanNational Center for Natural Products Research
University of Mississippi